Table 4.

Correlation between the Parkinson's Disease Social Functioning Scale and the relevant variables in the second cohort (total number of Parkinson's disease participants was 120)

	Correlation coefficient	P-value
Gender	−0.169	0.064
Age	−0.398	<0.001
Education	0.058	0.529
Age of onset	−0.259	0.004
Disease duration	−0.206	0.024
Hoehn–Yahr stage	−0.374	<0.001
Mini-Mental State Examination	0.434	<0.001
Activities of Daily Living Scale	0.289	0.001
Neuropsychiatric Inventory	−0.329	<0.001